Old World Monkeys (Catarrhines)

Region?

Africa and Asia.

of species?

~138.

Prehensile tail?

No.

Vision?

Trichromatic.

Diet?

Omnivorous (fruit + leaves).

Sitting adaptation?

Ischial pads (hard butt pads).

Mating signals?

Bright skin on face and buttocks.

Activity?

Diurnal.

% endangered?

About ⅓.

Examples?

Guenons, Mangabeys, Macaques, Baboons, Vervets.

Food storage adaptation?

Cheek pouches.

Learning rate?

Slow maturing.

Communication?

Facial expressions + calls.

Used in research?

Rhesus macaque.

Main threat?

Habitat loss & hunting.

Location?

Asia + some Africa.

Diet?

Leaves.

Digestive system?

Complex fermenting stomach.

Can digest strychnine?

Hanuman langurs.

Social behavior?

Less aggressive.

Why sacred?

Hanuman langurs in India.

Why hunted?

Fur & medicine.

Proboscis monkey trait?

Large nose for dominance.

Snub-nosed monkey threat?

Hunting & habitat loss.